Enhance your laboratory experience with the Nalge Nunc Closures designed specifically for 4.5mL NALGENE Micro Packaging Vials. Made from durable PPCO material, these closures ensure a secure seal, preventing contamination and preserving your samples. The easy-to-use design allows for quick access while maintaining integrity. Ideal for various applications, these closures are perfect for storing chemicals, biological samples, or pharmaceuticals. With the NALGENE 342826-0114 model, you can trust in the quality and reliability that NALGENE is known for. Upgrade your lab supplies with these essential closures today!